It can be argued that a「man, person」can be REPLACED by a「stake, stiff short piece of tapered wood used by pounding or driving into」some sort of hole, with such replacement performed most naturally by a female. REPRESENT by serving as a REPLACEMENT for some other entity or a person, one as good as another for whatever purpose.
　Or:「rod head sliding and driving stake into soil」as a SUBSTITUTE for some other natural orifice, and arguably REPRESENTATIVE of the existential ERA of the human condition generally, but particularly during pandemics.
　Or,「person with wild dog penis」as a statement that common folk inherently are just like dogs, and one can REPLACE another in a moment.「Person and military」or「person with lance」seems to depict a PAWN, a foot soldier, a person that was considered as expendable (leading to FEE, COST), and could be REPLACED quite easily by a command from the lord or a general, REPLACEABLE one with another after the frontline man had been killed or wounded.「Person as dog penis」is again making an analogy between dogs and grunt foot soldiers as REPLACEABLE one with another ad infinitum, reducing them to being just another COST of the feudal lord.
　「A replacement depot…is a military unit containing reserves or replacements for troops in front-line formations.」
　　[　https://en.wikipedia.org/wiki/Replacement_depot 2012-07-05　]　
　Perhaps the concept of FEE, COST is replacing money for goods or services, or representing the value as denominated by money: the price of something.
　ERA is an extension of one age replacing another, ad nauseam.
　The euphemism and analogy with the military, spear, and foot soldiers as「dogs」exists because the penis of a dog contains a baculum, a spear-shaped bone that enables the start of copulation at a moment's notice, since the penis is therefore「ready-hard」at all times, and enables very long copulatory sessions that may last until the dog collapses due to physical exhaustion, as a foot soldier ought to be when battling. Finally, while no one is suggesting that all women are this way, nor that any one woman is this way all the time, elements of「person with dog penis」also is a reminder that a canid bitch in heat (estrus) will in fact replace one dog with another, and another and another, as long as the dogs are there in waiting. Correspondingly when so inclined (although not in a state of estrus, but perhaps during ovulation) there also seems to be virtually no discernible, physical limit to the human female copulatory response in a single session as long as multiple partners (the dogs) are there in waiting, other than general bodily fatigue…human female bulbourethral glands, or Bartholin's glands, do not seem to give up easily, apparently yet another trait that resulted from natural selection (see the glyph meaning「voice」声 for further details). The allele in the human genome that limited female bulbourethral gland mucus secretion just seems to have dried up, as they say.

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: to substitute; to act on behalf of others; to replace; generation; dynasty; age; period; (historical) era; (geological) eon
Japanese: substitution, material, price, margin, area required for something, shiro, charge, cost, generation, age, reign, a representative of, on behalf of, used after a phone number to indicate that it is a switchboard number, counter for decades of ages, eras, etc., counter for generations, proxy application company, pronoun, world, society, change, alteration, substitute, spare, rate of exchange, replacement, substituting, replacing, stand-in, alternate, deputy, relief, successor, compensation, return, second helping, another cup, seconds, upcoming program, upcoming programme, substitute for …, to succeed, to relieve, to replace, to take the place of, to substitute for, to take over for, to represent, to be exchanged, to change, to switch, hereditary, generation after generation, to exchange, to interchange, instead of, in exchange for, in return, to make up for
Unihan extended: replace, replacement (of person or generation); era, generation
EDRDG: substitute; change; convert; replace; period; age; counter for decades of ages, eras, etc.; generation; charge; rate; fee

Used within names (nanori)
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